Live Testing Race Timer Prototypes

Students do a live test-run of their cardboard pressure plate prototypes. They have designed and built these sensors by hand with cardboard, tin foil and wire. Then they coded a stopwatch in Scratch (a drag-and-drop programming language for kids) and connected with MakeyMakey (a wildly fun computer input board).

The designs function well, and their structural limits (watch one break!) are important as they inform these young engineers of next steps about how to proceed on the next model, with better materials and design! New models, made with stronger materials will be used on a proper track during the “Greek Olympics” and at Field Day.

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